According to details obtained from the court, the condemned prisoners will be hanged to death on May 28.
Two of the convicts Sabir Baloch and Shahsawar Baloch are imprisoned in Central Jail Hyderabad and one Shabbir Baloch in Central Jail Karachi.
They were convicted for hijacking in August 1998 and their subsequent appeals in the Sindh High Court and the Supreme Court were dismissed in August 1999 and August 2000, respectively.
The PIA's plane which flew from Gawadar for Karachi was hijacked in May, 1998, and it landed in Hyderabad where the security forces succeeded in arresting the hijackers while avoiding any injury to the 33 passengers and five crew members who were on- board.